tslint: no use of namespace and module is permitted

I have recently acquired a legacy .ts file that I would like to update.

Two warnings appear:

'namespace' and 'module' are disallowed

and

The internal 'module' syntax is deprecated, use the 'namespace' keyword instead.

I have been reading about transitioning to standardized ES6-style external modules, but I am struggling to implement this.

The current structure of my code looks as follows:

export namespace MySpace
{
  export module MyModule
  {
    export interface MyInterface
    {
    }

    export class MyClass
    {
    }
    ...
  }
}

Could someone please provide guidance on how to update this structure to comply with modern style rules?

Thank you all in advance for your help!

Best regards,

mrt

Answer №1

The usage of the internal 'module' syntax is no longer recommended; switch to using the 'namespace' keyword instead.

This cautionary message from the linter pertains to export module MyModule, as it's important to note that MyModule functions more like a namespace than a module. The appropriate keyword to employ in this scenario would be namespace: export namespace MyModule.

It is advised against using 'namespace' and 'module'

The linter issues a warning regarding export namespace MySpace. When a top-level export statement is utilized, it signifies the file operates as a module, and combining namespaces and modules goes against best practices as outlined here.

Can someone provide guidance on updating this structure based on current style conventions?

Avoid incorporating namespace altogether. Transform your code into a module format for improved clarity:

export interface MyInterface
{
}

export class MyClass
{
}

// …

For further insights, refer to this introductory guide on modules by Mozilla.

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